Wrench.



No; 678,445. Patented luly l6, IBM. J. E. VAN NOTE.

WRENCH.

(Application filed Mar. 24, 1900.)

(No, Model.)

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, monkey-wrenches.

UNITED STATES PATENT OFFICE.

JACOB E. VAN NOTE, OF KANSAS CITY, KANSAS, ASSIGNOR OF ONE-HALF TO FRANK I. MOORE AND OSCAR L. CHASE, OF KANSAS CITY, MISSOURI.

WRENCH.

SPECIFICATION forming, part of Letters Patent N 0. 678,445, dated July 16, 1901.

Application filed March 24, 1900. Serial No. 10,007. (No model.)

To all whom it may concern:

Be it known that I, JACOB E. VAN N OTE, a citizen of the United States, residing in Kansas City, in the county of'Wyandotte and State of Kansas, have invented a new and useful Improvement in Wrenches, of which the following is a specification, reference being had therein to the accompanying drawlugs.

My invention relates to improvements .in wrenches. It is particularly adapted to The object of my invention is to provide a wrench that is strong, durable, not easily got out of repair, and which may be quickly and easily adjusted to fit nuts of any size.

My invention relates particularly to the mechanism by means of which the sliding jaw may be quickly and firmly secured in any desired position upon the shank and as readily released therefrom when it is desired to change the position of the sliding jaw.

My invention consists,further'; in providing the sliding jaw with an eccentrically-mounted pin operated by a lever, combined with a clamping-plate carried by the jaw and adapted to engage the wrench-shank, the clamping-plate being forced into or out of engage ment by rotating the eccentric in the proper direction.

My invention provides, further, means for locking the lever against movement when the clamping-plate is disengaged from the shank, thus preventing accidental movement of the lever and consequent clamping of the shank when the jaw is not in the position desired.

My invention provides, further, certain novel and useful features of construction, hereinafter fully described and claimed.

In the accompanying drawings, which illustrate my invention, Figure 1 represents a side elevation view with a portion of the clamping-plate and operating-lever broken away. Fig. 2 represents a side elevation view of a portion of the shank having mounted thereon the sliding jaw shown in vertical section with attached parts. Fig. 3 represents a side elevation view of the slidable jaw and connected parts removed from the shank. Fig. 4 represents a side elevation view of a portion of the shank having mounted thereon the slidable jaw, a portion of which is shown in central vertical section. Fig. 5 repre= sents a cross-section view taken on the dotted line a b of Fig. 2. Fig. 6 represents a central cross-sectional view of the clampingplate and eccentric. Fig. 7represents a side elevation view of the clamping-plate and cocentric. Fig. 8 represents a longitudinal sectional view of the lever.

Similar letters of reference indicate similar parts.

A is the shank,having the fixed jaw 13 and handle 0. Upon the shank is the slidable jaw D of the ordinary pattern. The side of the shank next the slidable jaw is preferably provided with transverse serrations, in which are adapted to fit serrations on the inner side of a U -shaped clamping-plate E, the two arms of which embrace the sides of the jaw D, which is provided with recessed portions on its sides,in which the clamping-plate moves toward and from the shank. The inner side of the jaw is provided with a recess to receive the body of the clamping-plate. Movement toward and from the shank by the clamping-plate is made by means of an eccentric comprisinga pin F, rotatably mounted in a transverse opening in the movable jaw. This pin is provided with an eccentricallydisposed longitudinal hole, in which is nonrotatably secured a pin G in any desirable manner, as by a feather H, disposed in longitudinally-located grooves, one in the pin G and an oppositely-disposed one in the pin F. The ends of the pin G extend beyond the ends of the pin F and enter slots provided one in each arm of the clamping-plate E. The pin Gis provided witha square opening extending through its length, in which is fitted a square rod I, the ends of which are secured in square openings provided one in each arm of a bifurcated lever J. Each arm of the lever J is provided with acam-shaped projection K, adapted when the lever is in the position shown in Fig. 1 to bear tightly against a laterally-projecting portion of the side of the movable jaw and above the lever, and thus prevent the lever from becoming displaced.

Above the recess in which is disposed the clamping-plate E in the movable jaw is another recess, in which is secured atransverse pin L, upon which is mounted one or more. toothed wheels M, adapted to engage the serrations in the side of the shank and prevent the movable jaw during its vertical movement from having a rubbing-contact against the shank-serrations. When more than one toothed wheel is used, they may be separated from each other by inserting a piece of tubing N between them, the tubing being mounted upon the pin L.

My invention is operated as follows: The lever is forced outwardly at its lower end into the position shown in Figs. 1 and 2. The relative positions of the pins F and Gare such that the pin G, operating in the oblong recesses in the side arms of the clampingplate E, will cause the said clam ping-plate to be moved out of engagement with the shank.

The jaw D then may he slid upon the shank tothe position desired. The jaw may then be firmly locked in position by depressing the lever J into the position shown in Fig. 4. S0 depressing the lever rotates the eccentric-pins F and G into the position shown in the said figure, and the pin G by operating in the slots in the arms of the clamping-plate forces the said plate toward the shank and causes the serrations on the inner edge of the plate to engage the serrations in the shank. The wrench may then be used without danger of disturbing the movable jaw, regardless of the strain put upon it during use.

My invention may be varied to suit different purposes without departing from its spirit.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a wrench, the combination with the shank, of a slidable jaw mounted thereon, a clamping-plate, a pin rotatably mounted in the jaw, means for forcing the clamping-plate into or out of engagement with the shank when the pin is rotated, a lever for rotating the pin and means for engaging the lever with the slidable jaw for locking the lever when the clamping-plate has been forced into the open position, substantially as described.

2. In a wrench, the combination with the shank, of a slidable jaw mounted thereon, a clamping plate, an eccentric rotatably mounted in the jaw and engaging the clamping-plate so as to force the same into or out of engagement with the shank when the eccentric is rotated, a lever for rotating the eccentric, and means for engaging thelever with the slidable jaw for locking the lever against movement when the clamping-plate is out of engagement with the shank, substantially as described.

3. In a wrench, the combination with the shank, of a slidable jaw mounted thereon, a clamping-plate, a lever pivoted to the sliding jaw and provided with a cam-shaped projection for engaging with and locking the lever to the said jaw, and means for engaging the clamping-plate with the shank, when the lever is moved in the proper direction, substantially as described.

4:. In a wrench, the. combination with the shank, of a slidable jaw mounted thereon, a clamping plate, an eccentric rotatably mounted in the said jaw, a lever secured to the-said eccentric and provided with a camshaped projection for engaging and locking the-lever to the jaw, and means for engaging the clamping-plate with the shank when the eccentric is rotated by the lever, substantially as described.

5. In a wrench, the combination with the shank, of a slidable jaw mounted thereon, a clamping-plate, a lever provided'with a bifurcated endembracing the sides of the jaw, the bifurcations being provided each with a camshaped portion for engaging the jaw, and means for engaging the clamping-plate with the shank when the lever is moved in the proper direction, substantially as described.

6. In a wrench, the combination with the shank, of a slidable jaw mounted thereon, a clamping plate, an eccentric rotatably mounted in the said jaw, a lever provided with a bifurcated end embracing the sides of the jaw and secured to the eccentric, the bifurcations each being provided with a cam-shaped projection for engaging the jaw, and means for engaging the clampingplate with the shank when the eccentric is rotated by moving the lever in the proper direction, substantially as described.

7. In a wrench, the combination with the shank, of a sliding jaw mounted thereon, a c1amping-plate,a pin rotatably mounted in the jaw, an eccentric carried thereby and engaging the clam ping-plate, and a lever embracing the sides of the jaw and secured to the said pin, the lever being provided with a camshaped projection for engaging with and look ing the lever to the jaw when the lever is moved to the proper position, substantially as described.

8. In a wrench, the combination with the shank of a sliding jaw mounted thereon, a lever provided with a cam-shaped projection for engaging with and locking the lever to the said jaw when the lever is moved to the proper position, and means for securing the jaw in any desired position on the shank when the lever is properly operated, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JACOB. E. VANNOTE.

Witnesses:

ROBT. M. RIGBY, WARREN D. HOUSE. 

